I have several molecules, and I want to measure their interactions (epair) with each other during the simulation (opls FF).
If I use the following commands, the interaction is between the 4 molecules only (inter-)? or both inter-molecular and intra-molecular?
What is the best method to measure only the inter-molecular interactions between several molecules (and not the intra-)? Maybe the sum of all individual interactions between each two molecules?
Thank you so much.
group mol1 id 1:202
group mol2 id 203:1404
group mol3 id 1405:2506
group mol4 id 2507:3002
Thank Steve. It was really helpful.
And what should I do if I want to do that measurement during the running itself (not rerun)? Is there any other method than summing all individual interactions between each two molecules?